Types of Chemical Reactions Worksheet



Name: _______________

Types of Chemical Reactions Worksheet

Writing Formulas

In order to complete chemical reactions, you must be able to write formulas for ionic compounds. Remember, to write the formula for ionic compounds all you have to do is criss-cross the numerical value of the charges into subscripts for the elements. Remember, polyatomic ions must be kept in brackets if there are more than one of them!

Ex) Ca+2 Cl –1 criss-crosses to make the formula CaCl2 (we don’t write 1’s as subscripts)

Ex) Al+3 SO4-2 makes Al2(SO4)3

Write formulas for the following ionic compounds (salts)

1. magnesium fluoride __________ 6. iron (II) sulfate ___________

2. calcium nitride __________ 7. barium nitrate ___________

3. aluminum iodide __________ 8. potassium phosphate ___________

4. sodium chloride __________ 9. cobalt (II) chlorate ___________

5. copper (I) sulfide __________ 10. zinc carbonate ___________

Write formulas for the following basic oxides (metal oxides)

1. lithium oxide __________ 6. iron (III) oxide ___________

2. magnesium oxide __________ 7. silver oxide ___________

3. barium oxide __________ 8. nickel (II) oxide ___________

4. potassium oxide __________ 9. tin (IV) oxide ___________

5. cesium oxide __________ 10. copper (II) oxide ___________

Write formulas for the following bases (end in hydroxide)

1. lithium hydroxide __________ 6. lead (II) hydroxide ___________

2. barium hydroxide __________ 7. zinc hydroxide ___________

3. aluminum hydroxide __________ 8. calcium hydroxide ___________

4. potassium hydroxide __________ 9. copper (I) hydroxide ___________

5. copper (II) hydroxide __________ 10. magnesium hydroxide ___________

Write formulas for the following acids (start with hydrogen!)

1. sulfuric acid ____________ 6. carbonous acid ____________

2. hydrosulfuric acid ____________ 7. sulfurous acid ____________

3. carbonic acid ____________ 8. nitrous acid ____________

4. nitric acid ____________ 9. phosphorous acid ____________

5. hydrofluoric acid ____________ 10. hydroiodic acid ____________

Types of Reactions

There are 5 major types of reactions simplified by the following equations:

• Synthesis/Combination A + B ( AB

• Decomposition AB ( A + B

• Combustion ? + O2 ( ?

• Single Replacement X + AB ( XB + A or Y + AB ( AY + B

• Double Replacement XY + AB ( XB + AY

Classify each of the following reactions:

1. Zn + Cl2 ( ZnCl2

2. 2 H2S + 3 O2 ( 2 SO2 + 2 H2O

3. Cu + 2 AgNO3 ( Cu(NO3)2 + 2 Ag

4. Mg(OH)2 ( MgO + H2O

5. CaCl2 + Na2SO4 ( CaSO4 + 2 NaCl

6. CaO + H2O ( Ca(OH)2

7. Pb + 4 HCl ( PbCl4 + 2 H2

8. Li2O + CO2 ( LiCO3

9. SO2 + H2O ( H2SO3

10. MgCO3 ( MgO + CO2

Classify each of the following reactions when only the reactants are given and fill in the products and balance:

1. Mg + N2 (

2. C2H6 + O2 (

3. Zn + CuCl2 (

4. Ca + H2O (

5. AgNO3 + NaI (

6. Fe(NO3)3 + LiOH (

7. MgCO3 (

8. SO2 + H2O (

9. HI (

10. H2SO4 + LiOH (

Finishing Reactions

Complete the following by identifying the type of reaction AND properly writing formulas: (HINT: double check to make sure the single replacements will work!)

1. Cobalt (III) hydroxide (

2. butane + oxygen (

3. AgNO3 (aq) + Fe2S3 (aq) (

4. lead (II) sulfate (

5. Fe + S8 (

(use iron (III) )

6. aluminum chlorate (

7. C6H12 + O2 (

8. K2CO3 (aq) + HCl (aq) (

9. ethane burning (

10. lead (II) + tin(II)nitrate (

11. sulfuric acid (

12. Ca + O2 (

13. zinc + sulfuric acid (

14. CO2 + H2O (

15. Cl2 + LiBr (

16. calcium chloride + potassium hydroxide (

17. K2O + H2O (

18. barium hydroxide (

19. Al + Ag2O (

20. MgO + CO2 (

21. lithium hydroxide + sulfuric acid (

22. magnesium + nitric acid (

23. Potassium + water (

24. KCl (

25. CuI + F2 (

26. Na2SO4 (aq) + Ba(NO3)2 (aq) (

27. H3PO4 (aq) + NaOH (aq) (

28. BeO + H2O (

29. zinc + oxygen (

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